SEVEN NEW WHITE-WINGED DOVES 



15 



Mazatlan, Sinaloa. This race also occurs in some mangrove swamps 

 and adjacent woodlands southeast to localities in Guerrero, but further 

 study of museum collections and additional field work will be needed 

 to determine distribution in more detail. There are several specimens 

 of palustris in museum collections from near Acapulco, Guerrero, and 

 six in my series from there. Two of the latter were taken in the 

 breeding season (February 6 and 11, 1949), and four in August and 

 September, 1965 (from A. R. Phillips collection) . Most of the speci- 

 mens I have seen from Sinaloa, Nayarit, Colima (Schaldach, 1963) , and 

 Guerrero were taken in winter and were chiefly migrant and winter- 

 ing mearnsi. 



The northern limit of the range of palustris may extend to about 

 Culiacan, Sinaloa. A male collected at Providencia, 15 miles west of 

 Culiacan, April 11, 1963, by A. R. Phillips, is palustris both in color- 

 ation and dimensions, although its back is slightly paler than average. 

 There is little mangrove swamp north of Culiacan, and no speci- 

 mens of palustris have been seen beyond there. 



SPECIMENS EXAMINED 



Mexico: Guerrero: Laguna Coyuca, Laguna Cayaco, and Laguna 

 Tres Palos, all near Acapulco; Ciruelar and Tuncingo. Nayarit: San 

 Bias and Quimeche River (Rio Acaponeta) . Sinaloa: Escuinapa, 

 Mazatlan, and Providencia (La Palnia) . Most of these were taken 

 during the breeding season. 



A review of specimens of white-winged doves from the Tres Marias 

 Islands, Nayarit, Mexico, and comparison of them with series taken on 

 the mainland show that they are a separate race. The name proposed 

 is: 



Zenaida asiatica insularis^ new subspecies 

 Tres Marias White-winged Dove 



CHARACTERS 



Similar to palustris of the adjoining mainland of Nayarit and 

 Sinaloa, but with paler plumage and longer wings. It likewise has 

 longer wings than mearnsi of Arizona and Sonora, but is slightly darker. 

 It is similar in dimensions to Z. a. monticola of the Mexican highlands, 

 but has darker underparts. 



DESCRIPTION 



Type, Acad. Nat. Sci. Phila. No. 150095, adult male, Maria Madre, 

 Tres Marias Islands, Nayarit, Mexico, July 12, 1941, collected by 

 Dawson Feathers, Fifth George Vanderbilt Expedition. Crown deep 

 brownish drab; hindneck brownish drab; back olive brown; tertiaries 

 Saccardo's umber; middle rectrices sepia; throat wood brown to 



